Alert archive / Michigan / Severe Thunderstorm Watches in 2002
Severe Thunderstorm Watch 551
The Storm Prediction Center issued this severe thunderstorm watch at Jul 29, 2002, 12:40 PM EST for 21 counties in Indiana; 35 counties in Michigan; 8 counties in Ohio. It was in force for 5 hr.
The area
The outline as issued.
The facts
- Issued
- Jul 29, 2002, 12:40 PM EST (17:40 UTC)
- Expired
- Jul 29, 2002, 6:00 PM EST
- In force
- 5 hr
- Issued by
- the Storm Prediction Center
All 64 counties
Adams County, IN, Allen County, IN, Carroll County, IN, Cass County, IN, DeKalb County, IN, Elkhart County, IN, Fulton County, IN, Huntington County, IN, Kosciusko County, IN, LaGrange County, IN, Marshall County, IN, Miami County, IN, Noble County, IN, Pulaski County, IN, Saint Joseph County, IN, Starke County, IN, Steuben County, IN, Wabash County, IN, Wells County, IN, White County, IN, Whitley County, IN, Arenac County, MI, Barry County, MI, Bay County, MI, Branch County, MI, Calhoun County, MI, Cass County, MI, Clare County, MI, Clinton County, MI, Eaton County, MI, Genesee County, MI, Gladwin County, MI, Gratiot County, MI, Hillsdale County, MI, Huron County, MI, Ingham County, MI, Ionia County, MI, Isabella County, MI, Jackson County, MI, Kalamazoo County, MI, Lapeer County, MI, Lenawee County, MI, Livingston County, MI, Macomb County, MI, Midland County, MI, Monroe County, MI, Montcalm County, MI, Oakland County, MI, Saginaw County, MI, Saint Clair County, MI, Saint Joseph County, MI, Sanilac County, MI, Shiawassee County, MI, Tuscola County, MI, Washtenaw County, MI, Wayne County, MI, Defiance County, OH, Fulton County, OH, Henry County, OH, Mercer County, OH, Paulding County, OH, Putnam County, OH, Van Wert County, OH, Williams County, OH
The radar
The Northern Indiana radar (KIWX), 83 km from the middle of the area, began a volume at 17:41 UTC, the scan nearest the moment this went out.
Open the radar archive at this moment
The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.
Warnings issued inside it
6 tornado, severe thunderstorm and flash flood warnings for its counties while it was in force.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 29, 1:47 PM EST | Severe Thunderstorm Warning | IWX | Fulton, Kosciusko, Miami, Wabash | 58 min |
| Jul 29, 2:00 PM EST | Severe Thunderstorm Warning | DTX | Huron | 60 min |
| Jul 29, 2:07 PM EST | Severe Thunderstorm Warning | IWX | Whitley | 38 min |
| Jul 29, 2:30 PM EST | Severe Thunderstorm Warning | IWX | Allen | 45 min |
| Jul 29, 3:48 PM EST | Severe Thunderstorm Warning | DTX | Macomb | 42 min |
| Jul 29, 3:53 PM EST | Severe Thunderstorm Warning | IWX | Allen, Putnam, Van Wert | 67 min |
The nearest sounding before it
Detroit, MI (KDTX), launched 12:00Z, 5.7 hours before the alert went out and 161 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.
- Mixed-layer CAPE
- 403 J/kg
- Mixed-layer CIN
- -56 J/kg
- Mixed-layer LCL
- 1077 m above ground
- 0-6 km bulk shear
- 31 kt
- 0-1 km storm-relative helicity
- 46 m²/s²
- 0-3 km storm-relative helicity
- 111 m²/s²
- Significant tornado parameter
- 0.1
- Supercell composite
- 1.1
SPC that day
Everything else SPC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 29, 12:20 PM EST | Severe Thunderstorm Watch | SPC | Bartholomew, Boone, Brown, Clay, Clinton, Daviess and 35 more | 6 hr |
| Jul 29, 3:30 PM EST | Severe Thunderstorm Watch | SPC | Dearborn, Franklin, Ohio, Ripley, Union | 6 hr |
| Jul 29, 6:10 PM EST | Severe Thunderstorm Watch | SPC | Athens, Belmont, Carroll, Columbiana, Guernsey, Harrison and 15 more | 5 hr |
Nearby
Severe Thunderstorm Watches in Michigan, 2002Severe Thunderstorm Watches in Indiana, 2002Severe Thunderstorm Watches in Ohio, 2002Every severe thunderstorm watch in 2002
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.